I would argue that the Kaiser does need the Charter's permission to usurp a Chancellorship. If he is not elected, or not using his prerogative, the Kaiser can not just assume the position.

Or are we living in a dictatorship and no one bothered to tell me?

What if the Kaiser was less competent than the current Kaiser? Would all of you still be so complacent? I say we should be consistent with how we apply law.